﻿using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using System.Web;
using YiSha.Cache.Factory;

namespace YiSha.Web.Code;

public class Operator
{
    public static Operator Instance
    {
        get { return new Operator(); }
    }

    private string LoginProvider = GlobalContext.Configuration.GetSection("SystemConfig:LoginProvider").Value;
    private string TokenName = "UserToken"; //cookie name or session name

    public async Task AddCurrent(string token)
    {
        switch (LoginProvider)
        {
            case "Cookie":
                new CookieHelper().WriteCookie(TokenName, token);
                break;

            case "Session":
                new SessionHelper().WriteSession(TokenName, token);
                break;

            case "WebApi":
                OperatorInfo user = await new DataRepository().GetUserByToken(token);
                if (user != null)
                {
                    CacheFactory.Cache.SetCache(token, user);
                }
                break;

            default:
                throw new Exception("未找到LoginProvider配置");
        }
    }

    /// <summary>
    /// Api接口需要传入apiToken
    /// </summary>
    /// <param name="apiToken"></param>
    public void RemoveCurrent(string apiToken = "")
    {
        switch (LoginProvider)
        {
            case "Cookie":
                new CookieHelper().RemoveCookie(TokenName);
                break;

            case "Session":
                new SessionHelper().RemoveSession(TokenName);
                break;

            case "WebApi":
                CacheFactory.Cache.RemoveCache(apiToken);
                break;

            default:
                throw new Exception("未找到LoginProvider配置");
        }
    }

    /// <summary>
    /// Api接口需要传入apiToken
    /// </summary>
    /// <param name="apiToken"></param>
    /// <returns></returns>
    public async Task<OperatorInfo> Current(string apiToken = "")
    {
        IHttpContextAccessor hca = GlobalContext.ServiceProvider?.GetService<IHttpContextAccessor>();
        OperatorInfo user = null;
        string token = string.Empty;
        switch (LoginProvider)
        {
            case "Cookie":
                if (hca.HttpContext != null)
                {
                    token = new CookieHelper().GetCookie(TokenName);
                }
                break;

            case "Session":
                if (hca.HttpContext != null)
                {
                    token = new SessionHelper().GetSession(TokenName);
                }
                break;

            case "WebApi":
                token = apiToken;
                break;
        }
        if (string.IsNullOrEmpty(token))
        {
            return user;
        }
        token = token.Trim('"');
        user = CacheFactory.Cache.GetCache<OperatorInfo>(token);
        if (user == null)
        {
            user = await new DataRepository().GetUserByToken(token);
            if (user != null)
            {
                CacheFactory.Cache.SetCache(token, user);
            }
        }
        return user;
    }
}